Best Solar Generators for Home Backup Power (2026)

Picture this: a severe thunderstorm rolls through your neighborhood and the power goes out. The fridge starts warming, your phone is at 30%, and the kids are asking when the lights are coming back. For millions of American families, this scenario plays out several times a year — and it's getting more frequent. A portable solar generator offers a quiet, fuel-free way to keep your essentials running through outages lasting hours or even days.

We spent over 40 hours comparing the top solar generators for home backup, evaluating them on battery capacity, AC output, solar recharge speed, expandability, and overall value. Whether you need whole-home backup or a compact starter unit, here are our top picks for 2026.

Our Top Picks at a Glance

Top Solar Generators for Home Backup (2026)

Feature	EcoFlow Delta Pro Ultra	Bluetti AC300 + B300	Anker SOLIX F2000	Jackery Explorer 2000 Plus	Bluetti AC200MAX
Price	~$3,499	~$2,599	~$1,699	~$2,199	~$1,599
Capacity	6,144Wh (expandable to 90kWh)	3,072Wh (expandable to 12,288Wh)	2,048Wh	2,042Wh (expandable to 12kWh)	2,048Wh (expandable to 8,192Wh)
AC Output	7,200W (surge 14,400W)	3,000W (surge 6,000W)	2,400W (surge 4,600W)	3,000W (surge 6,000W)	2,200W (surge 4,800W)
Max Solar Input	5,600W	2,400W	1,000W	1,400W	900W
Weight	99 lbs	137 lbs (unit + battery)	61.5 lbs	61.5 lbs	61.9 lbs
Best For	Whole-home backup	Premium portable with expandability	Best value for capacity	Portable powerhouse	Reliable mid-size backup

EcoFlow Delta Pro Ultra

~$3,499

Capacity

6,144Wh (expandable to 90kWh)

AC Output

7,200W (surge 14,400W)

Max Solar Input

5,600W

Weight

99 lbs

Best For

Whole-home backup

Bluetti AC300 + B300

~$2,599

Capacity

3,072Wh (expandable to 12,288Wh)

AC Output

3,000W (surge 6,000W)

Max Solar Input

2,400W

Weight

137 lbs (unit + battery)

Best For

Premium portable with expandability

Anker SOLIX F2000

~$1,699

Capacity

2,048Wh

AC Output

2,400W (surge 4,600W)

Max Solar Input

1,000W

Weight

61.5 lbs

Best For

Best value for capacity

Jackery Explorer 2000 Plus

~$2,199

Capacity

2,042Wh (expandable to 12kWh)

AC Output

3,000W (surge 6,000W)

Max Solar Input

1,400W

Weight

61.5 lbs

Best For

Portable powerhouse

Bluetti AC200MAX

~$1,599

Capacity

2,048Wh (expandable to 8,192Wh)

AC Output

2,200W (surge 4,800W)

Max Solar Input

900W

Weight

61.9 lbs

Best For

Reliable mid-size backup

What to Look for in a Home Backup Solar Generator

Before diving into individual reviews, let's break down the five specs that matter most when choosing a solar generator for home backup. Understanding these will help you match the right unit to your household's actual needs.

Battery Capacity (Wh) — The Most Important Spec

Watt-hours (Wh) tell you how much total energy the unit stores. Think of it as the size of your fuel tank. A standard refrigerator draws about 150W on average, so a 2,000Wh unit can keep it running for roughly 11-13 hours after accounting for inverter efficiency losses of 10-15%. For a family running a fridge, lights, router, and charging devices, plan on at least 1,500-2,000Wh. For whole-home essentials including a window AC unit, look at 3,000Wh and above.

AC Output (Watts) — What Can It Actually Run?

Continuous wattage determines what appliances you can power simultaneously. A 2,000W output handles most essentials: fridge (150W running, 800W surge), lights, router, phones, and laptops. If you want to run a window AC unit (1,200W+) or power tools, you'll need 3,000W or more. Pay attention to surge wattage too — refrigerators and sump pumps draw 3-5x their rated watts for the first few seconds at startup.

Solar Recharge Speed — Not All Are Equal

Maximum solar input varies dramatically: from 900W on the Bluetti AC200MAX to 5,600W on the EcoFlow Delta Pro Ultra. Higher input means faster recharge from solar panels. In practical terms, a 400W solar panel setup in 5 peak sun hours delivers about 1,600-1,800Wh per day — enough to meaningfully extend your runtime. But be realistic: AC wall charging is always faster. Solar is your backup-charging method, not your primary one.

Expandability — Grow Your System Over Time

Several modern solar generators accept add-on battery packs: the Bluetti AC300 expands to 12,288Wh, the Jackery 2000 Plus to 12,000Wh, and the EcoFlow Delta Pro Ultra to a staggering 90kWh. This modular approach lets you start with a base unit and add capacity as your budget allows — no need to replace the entire system.

UPS (Uninterruptible Power Supply) Mode

If you plan to keep the generator plugged into the wall as a standby backup, UPS mode is essential. It automatically switches to battery power when the grid goes down. A switchover time under 20ms is considered seamless — your devices won't even notice the transition. This is critical for medical devices (CPAP machines), home servers, and security systems.

Best Overall — EcoFlow Delta Pro Ultra

The EcoFlow Delta Pro Ultra is the most capable home backup solar generator you can buy in 2026. With 6,144Wh of LiFePO4 capacity, 7,200W of continuous AC output, and expandability up to 90kWh with additional battery packs, it's designed to be a complete home energy system — not just a portable power station.

What sets the Delta Pro Ultra apart is its Smart Home Panel 2 integration. When paired with EcoFlow's transfer switch, it can automatically back up your home's essential circuits — fridge, lights, router, medical devices — with a switchover time under 20ms. It can also integrate with rooftop solar arrays, making it part of a permanent home energy ecosystem.

The honest trade-offs: at 99 lbs and ~$3,499, this is a premium investment. If you only need to keep phones charged and run a few lights during a short outage, the Delta Pro Ultra is serious overkill. But for homeowners who want genuine whole-home backup with solar charging capability, nothing else comes close.

Best Premium Portable — Bluetti AC300 + B300

The Bluetti AC300 + B300 combo delivers serious home backup capability in a modular, expandable package. The AC300 is an inverter-only unit (no internal battery) that pairs with B300 battery modules — each adding 3,072Wh of LiFePO4 capacity. With up to four B300 batteries, you get 12,288Wh of total capacity.

The modular design is the AC300's biggest advantage: start with one B300 ($1,599 for the combo) and add more as your budget and needs grow. The 3,000W continuous output handles fridges, window AC units, and power tools comfortably, with a 6,000W surge for motor startups.

Bluetti's 2,400W maximum solar input means you can pair this with six 400W panels for meaningful off-grid charging. The unit also supports dual AC charging at 5,400W, filling a single B300 battery in about 45 minutes from the wall.

Best Value — Anker SOLIX F2000

The Anker SOLIX F2000 (also known as the PowerHouse 767) hits a sweet spot between capacity, output, and price. With 2,048Wh, 2,400W continuous output, and a street price around $1,699, it delivers more usable power per dollar than most competitors in its class.

Anker's GaNPrime technology enables fast AC charging — a full recharge in about 1.5 hours from the wall. The 1,000W maximum solar input is moderate, but sufficient for a dual-panel setup. Build quality is excellent, with a proprietary InfiniPower LiFePO4 system rated for 3,000+ cycles.

The F2000 is the right choice if you want strong capacity without paying for expandability features you may never use. It's a self-contained, one-box solution that handles the essential circuits during a multi-day outage.

Best Portable Powerhouse — Jackery Explorer 2000 Plus

The Jackery Explorer 2000 Plus combines Jackery's legendary ease of use with serious home backup capability. The 2,042Wh LiFePO4 battery and 3,000W output put it in the same league as units costing $500 more, and the expandable battery system lets you scale up to 12kWh.

What Jackery does better than almost anyone is the user experience: the mobile app is intuitive, the display is clear, and setup is plug-and-play. For families who don't want to fuss with technical configurations, this matters. The 2000 Plus also has a strong retail presence — you can find it at Costco, Amazon, and REI, which means accessible customer support.

The 1,400W maximum solar input is competitive, and Jackery's proprietary SolarSaga panels are designed to work seamlessly with the unit. AC wall charging takes about 2 hours for a full recharge.

Best Value Mid-Size — Bluetti AC200MAX

The Bluetti AC200MAX is the workhorse pick for families who want proven reliability at a lower price point. With 2,048Wh of LiFePO4 capacity and 2,200W continuous output, it comfortably handles a refrigerator, lights, router, laptops, and phone charging — the essential circuits most families need during an outage.

The AC200MAX has been on the market longer than most units in this roundup, which means a large user community, well-documented real-world performance data, and frequent sales. It regularly drops to $1,299-$1,399 during Black Friday and Prime Day events.

It also accepts up to two B300 expansion batteries (adding up to 6,144Wh), giving it growth potential if your needs increase. The 900W maximum solar input is the lowest in this roundup, so recharging from panels takes longer — plan accordingly.

Best Starter Pick — Jackery Explorer 1000 Plus

The Jackery Explorer 1000 Plus is the ideal entry point for families new to solar generators. At ~$999 with 1,264Wh of LiFePO4 capacity and 2,000W output, it covers the essentials without a premium price tag.

What you get for under $1,000: enough capacity to run a small refrigerator for about 7 hours, keep phones and laptops charged for days, power LED lights indefinitely, and maintain your router and modem through a 24-hour outage. It won't power your whole house — and it's not trying to. It's designed to be the reliable, affordable unit that every household can justify.

The 1000 Plus is also genuinely portable at reasonable weight, making it a dual-use unit for camping trips and tailgating when it's not on standby at home. Jackery's ecosystem means you can upgrade to a 2000 Plus later and keep the 1000 Plus as a secondary unit or dedicated car kit.

Head-to-Head Comparison

Here's a detailed spec comparison to help you make a final decision. Pay attention to the metrics that matter most for your household: if you need maximum runtime, focus on capacity; if you need to run high-draw appliances, focus on AC output and surge wattage.

Detailed Specifications Comparison

Feature	EcoFlow Delta Pro Ultra	Bluetti AC300 + B300	Anker SOLIX F2000	Jackery Explorer 2000 Plus	Bluetti AC200MAX
Price	~$3,499	~$2,599	~$1,699	~$2,199	~$1,599
Battery Type	LiFePO4	LiFePO4	LiFePO4	LiFePO4	LiFePO4
Capacity	6,144Wh	3,072Wh	2,048Wh	2,042Wh	2,048Wh
Continuous Output	7,200W	3,000W	2,400W	3,000W	2,200W
Surge Output	14,400W	6,000W	4,600W	6,000W	4,800W
Max Solar Input	5,600W	2,400W	1,000W	1,400W	900W
AC Charge Time	~2.5 hours	~45 min (dual AC)	~1.5 hours	~2 hours	~2.5 hours
Weight	99 lbs	137 lbs (combined)	61.5 lbs	61.5 lbs	61.9 lbs
UPS Mode	Yes (<20ms)	Yes (<20ms)	Yes (<20ms)	Yes (<20ms)	Yes (<30ms)
Expandable	Yes (to 90kWh)	Yes (to 12,288Wh)	No	Yes (to 12,000Wh)	Yes (to 8,192Wh)

EcoFlow Delta Pro Ultra

~$3,499

Battery Type

LiFePO4

Capacity

6,144Wh

Continuous Output

7,200W

Surge Output

14,400W

Max Solar Input

5,600W

AC Charge Time

~2.5 hours

Weight

99 lbs

UPS Mode

Yes (<20ms)

Expandable

Yes (to 90kWh)

Bluetti AC300 + B300

~$2,599

Battery Type

LiFePO4

Capacity

3,072Wh

Continuous Output

3,000W

Surge Output

6,000W

Max Solar Input

2,400W

AC Charge Time

~45 min (dual AC)

Weight

137 lbs (combined)

UPS Mode

Yes (<20ms)

Expandable

Yes (to 12,288Wh)

Anker SOLIX F2000

~$1,699

Battery Type

LiFePO4

Capacity

2,048Wh

Continuous Output

2,400W

Surge Output

4,600W

Max Solar Input

1,000W

AC Charge Time

~1.5 hours

Weight

61.5 lbs

UPS Mode

Yes (<20ms)

Expandable

No

Jackery Explorer 2000 Plus

~$2,199

Battery Type

LiFePO4

Capacity

2,042Wh

Continuous Output

3,000W

Surge Output

6,000W

Max Solar Input

1,400W

AC Charge Time

~2 hours

Weight

61.5 lbs

UPS Mode

Yes (<20ms)

Expandable

Yes (to 12,000Wh)

Bluetti AC200MAX

~$1,599

Battery Type

LiFePO4

Capacity

2,048Wh

Continuous Output

2,200W

Surge Output

4,800W

Max Solar Input

900W

AC Charge Time

~2.5 hours

Weight

61.9 lbs

UPS Mode

Yes (<30ms)

Expandable

Yes (to 8,192Wh)

How We Chose These Solar Generators

We evaluated over 15 solar generators currently available in the US market, narrowing to these six based on four weighted criteria: battery capacity and chemistry (30%), AC output and surge handling (25%), solar recharge speed and expandability (25%), and overall value including warranty and brand support (20%).

We prioritized LiFePO4 battery chemistry for its safety profile and longevity (3,000-6,000 cycles vs. 500-800 for NMC). All specs cited are from published manufacturer specifications. Real-world performance will vary based on ambient temperature, load profiles, and battery age. Where possible, we cross-referenced specs with user reviews and independent testing data.

Solar Generator vs. Gas Generator — Which Is Right for You?

Solar generators aren't the right choice for every household. Here's the honest comparison: gas generators produce more sustained power at a lower upfront cost. A quality 5,000W gas generator costs $800-$1,500 and can run indefinitely with fuel. But they're loud (65-75 dB), produce carbon monoxide (never use indoors), require fuel storage, and need regular maintenance.

Solar generators are silent, produce zero emissions, work safely indoors, require virtually no maintenance, and recharge from sunlight. The trade-off is higher cost per watt-hour and slower recharging. For most suburban families preparing for 1-3 day outages, a solar generator is the better fit. For rural homeowners facing potential week-long outages or needing to power well pumps and HVAC systems, a gas generator (or a dual-fuel hybrid) may be more practical.

Frequently Asked Questions

How long will a solar generator power a refrigerator?

A standard full-size refrigerator draws about 150W on average (with startup surges of 400-800W). A 2,000Wh solar generator will keep it running for approximately 11-13 hours after accounting for inverter efficiency losses of 10-15%. A 6,000Wh unit like the EcoFlow Delta Pro Ultra can power a fridge for 35+ hours continuously.

Can a solar generator power an entire house?

It depends on what "entire house" means. A large unit like the EcoFlow Delta Pro Ultra (7,200W) can run essential circuits: fridge, lights, router, phone charging, and even a window AC unit. But it can't run a central HVAC system, electric water heater, and clothes dryer simultaneously. For true whole-home backup including heating and cooling, you'd need a much larger battery system or a traditional standby generator.

How do I recharge a solar generator without sun?

Every generator in this roundup supports AC wall charging — and most do it faster than solar. The Anker F2000 charges fully in 1.5 hours from a standard wall outlet. You can also charge from a car's 12V outlet (much slower, typically 100-400W input) in an emergency. Some units like the EcoFlow Delta Pro Ultra also support generator input for hybrid gas-solar setups.

What size solar generator do I need for home backup?

For a family of four running essentials (fridge, lights, router, devices): minimum 1,500Wh for an overnight outage, 2,000-3,000Wh for a 24-48 hour outage, and 5,000Wh+ for multi-day backup. Our rule of thumb: calculate your daily essential load in watt-hours and multiply by the number of backup days you want.

Are solar generators safe to use indoors?

Yes — this is one of their biggest advantages over gas generators. Solar generators produce zero emissions and are completely safe for indoor use. LiFePO4 batteries have excellent thermal stability and don't off-gas under normal conditions. Just keep them in a dry, ventilated area away from direct heat sources.

Is a solar generator worth it for a 1-2 day power outage?

Absolutely — this is their ideal use case. A $999-$1,699 solar generator will comfortably cover 1-2 day outages for a typical household's essentials. When you factor in the cost of spoiled food from even one extended outage ($200-$500 for a full fridge and freezer), a solar generator pays for itself surprisingly quickly. Unlike gas generators, there's no ongoing fuel cost, and LiFePO4 batteries last 10-15 years with proper care.

Final Verdict

For most homeowners, the Anker SOLIX F2000 offers the best combination of capacity, output, and value at ~$1,699. It's our "set it and forget it" recommendation — plug it in, turn on UPS mode, and it's ready when you need it.

If you want the absolute best whole-home backup with room to grow, the EcoFlow Delta Pro Ultra is the clear winner at ~$3,499. And if you're just getting started with emergency preparedness on a budget, the Jackery Explorer 1000 Plus at ~$999 covers the essentials without overcommitting.

Whatever you choose, the best solar generator is the one you actually have charged and ready when the power goes out. Start with what fits your budget today — you can always upgrade later.